I am working with the ADS1299 Dev Board from TI , and facing a lot of problems to connect it with arduino protenta h7 , I did something similar before with the Pico and it was working but I am unable to integrate it with Portenta H7. Dropping my libs repo below , any help would really be appreciated : My Library for Portenta H7 with ADS1299
Also sharing the Pico Library for ADS1299 which I am using as refference: Pico Lib for ADS1299 And the Driver for Pico itself was made using this lib: Arduino ADS1299 Driver